Ounces to US Gallons Converter
Convert ounces (oz) to US gallons (gal)
Result
1 oz of water = 0.007489151707 gal
1 oz in other units
- 1Enter a valueType the number to convert
- 2Pick the unitsChoose what to convert from and to
- 3Read the resultSee it in every other unit too
How to convert ounces to US gallons
Weight and volume are linked by density. Water weighs 1 gram per millilitre, so for water gal = oz × 0.007489152 (water). For other substances, pick one above.
gal = oz × 0.007489152 (water)
500 oz of water = 3.744576 gal
Other substances
1 oz is milk 0.007271 gal, cooking oil 0.00814 gal, ghee (melted) 0.00823 gal, honey 0.005274 gal. Lighter substances such as oil take up more volume for the same weight.
About ounces (oz)
An ounce (by weight) is about 28.35 g. It's different from a fluid ounce, which measures volume.
About US gallons (gal)
A US gallon is about 3.785 litres.
More conversions
Ounces to other units
Other units to US Gallons
Frequently asked questions
How many US gallons are in one ounce?
For water, one ounce is 0.007489152 US gallons. For other substances it depends on density: milk 0.007271 gal, cooking oil 0.00814 gal, ghee (melted) 0.00823 gal, honey 0.005274 gal.
Is the oz to gal conversion the same for every liquid?
No. Weight and volume are linked by density, so oil, milk and honey all give different answers. Pick the substance in the converter above.
How do I convert ounces to US gallons?
Turn the weight into grams, divide by the density in g/mL to get millilitres, then convert to US gallons. For water: 500 oz = 3.744576 gal.